Limekiln



UNITE STA P ENT QFFICE.

DANIEL HERR (PEQUEA), OF LANCASTER, PENNSYLVANIA.

LIMEKILN.

T0 all whom t may concern:

Be it known that I, DANIEL HERR, (PE- QUEA,) of Lancaster, in the county of Lancaster and State of Pennsylvania, have invented an Improvement in Limekilns, and that the following is a full, clear, and exact description of the principle or character which distinguishes it from all other things before known and of the usual manner of making, modifying, and using the same, reference being had to the accompanying drawings, of which- Figure l is a perspective view of the kiln showing the interior, and, Fig. 2 is a transverse section in the line x, m.

The nature of my invention consists in so constructing permanent arches for lime kilns that the fire may have free accessv to the lime stone from beneath and at the same time the loose lime and fragments in falling through the grate-ways of the arch shall not fall upon and deaden the lire.

The following is a description thereof:

The grate a which does not extend the whole width of the kiln is surmounted by a double series of arched ribs Z) and c which meet at their vertex in a tapering cross bar CZ. The section of each of the ribs 0 is a spheroidal triangle, two sides being convex and the third side being concave. The third side of the ribs Y) is a straight line. The upper as well as the lower ribs are equal distances apart. The lower ribs c have the edge formed by the two convex sides, toward the fire place a and have their concave section outside. The upper ribs b have their l straight sections inside (next to the concave section of the lower ribs) andhave the edge outside in immediate contact with the lime stone which is filled in from the top of the kiln. The arrangement is such that each of the upper ribs extend over and across the space between each two of the lower ribs, the inside of the upper ribs and the outside of the lower ribs being somewhat distant from each other. The fire and heat passes from the grate between the lower ribs (through the spaces between the ribs as described) into the lime stone. The loose parts of the material are, by the ribbed arches above described, prevented from falling into the fire, all the material passing down toward and into the space e between the fire place and the walls 7', of the kiln, and can be easily removed therefrom when desired.

lVhat I claim as my invention is- Making the arch of the kiln with two series of arched, channeled-ribs, so arranged that the outer ribs shall extend over and across the spaces left between the inner ribs, and at the same time leave suflicient space between the outer and inner ribs for the fire and heat to pass into the lime stone, whereby the fragments and loose lime are all prevented from falling into the lire, and are conducted down the channels into the proper receptacle below.

DANIEL HERR (PEQUEA.)

Vitnesses HENRY D. MUssELMAN, M. CARPENTER. 

